Antenna Specialists Super Scanner Antenna Insulators part # 8-253-1. 3 pairs of insulators Black in color. These are printed with a 3D printer as they are no longer aviable or in production. The insulators shells are 3mm thick and 100% infill for duribility and are very strong. The test print was tested on a Super Scanner Antenna for proper fit. No modifcations will be needed to use these Insulators they will fit like original insulators.